发明人赵玉洁,罗永刚,周伟. "Method for the Synthesis of 6λ⁶-thia-2-azaspiro[3.5]nonane 6,6-dioxide;hydrochloride" [P]. 中国发明专利, 专利号 CN 109963161 B, 授权公告日 2024-02-04.
发明人唐晓军,高志强,何建平. "A Process for Preparing High-Purity 6λ⁶-thia-2-azaspiro[3.5]nonane 6,6-dioxide;hydrochloride" [P]. 中国发明专利, 专利号 CN 108080715 B, 授权公告日 2016-05-06.
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